%I #3 Mar 31 2012 13:20:14
%S 1,6,36,174,-174,-26076,-596616,-10334556,-143486244,-1157102136,
%T 19891298736,1443409042536,52915941558936,1542313273333104,
%U 37123741709607456,635436136388469744,-1073509544497887216,-801332217409556182176,-51221481393025808800704
%N Alternating row sums of triangle A134141 (S1p(7)).
%F a(n)= sum(A134141(n,m)*(-1)^(m-1),m=1..n),n>=1.
%F E.g.f.: 1 - exp(-(1-(1-x)^6)/(6*(1-x)^6)). Cf. e.g.f. first column of A134141.
%Y Cf. A132164 (row sum of A134141).
%K sign,easy
%O 1,2
%A _Wolfdieter Lang_ Oct 12 2007